<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>这是一个网页</title>
	</head>
	<body>
		<p>这是一段内容</p>
		<button>按钮</button>
	</body>
</html>
<script src="index.js" type="text/javascript" charset="utf-8"></script>